First time I have used ninja - I brought my son the ks2 sats practice papers ( 3x maths and 3 X reading and spag papers) I read previous reviews so I was expecting the papers to be in one big book - it was so much nicer than I thought which made my son write neater in it . Fab answers at the back , would have been good to have explanation how to get the answer but that is my only negative . Excellent explaining of how to mark the answers . The questions were a mixture of normal and some much harder questions which had our brains working aswell as our son. Covered all topics esp for the new curriculum.. Excellent fast delivery , I will def be buying from ninja again, thanks ninja and good luck to all sitting their sats in couple of week .